Window stop and fastener



UNITED sTATEs PATENT onirica.

CLARK .SHANIL OF EAST AURORA, NEW YORK.

WINDOW STOP AND FASTENER.

Specification of Letters Patent No. 31,261, dated January 29, 1861.

T o all 'whom it may concern:

Be it known that I, CLARK SHAW, ofl East Aurora county of Erie, andState of New York, have invented certain new i and useful Improvementsin the Construction and Operation of IVindow Stops and Fasteners; and Ido hereby declare that the following is a full and exact descriptionthereof, reference being had to the accompanying drawings and to theletters of reference marked thereon.

Figure I is a plan of the left hand side of the window frame as preparedto receive one stop and fastener and No. 1 (Fig. I) is a plan of t-hestop. No. 2 plan of the fastener and No. 3 a plan of the cam asconnected withl a knob for operating the fastener and stop. Fig. II is aplan of the right hand side of the window frame as prepared to receivetwo stops and fastener No. 1 (Fig. II) is a plan of the spring stopsconnected therewith and No. 2 plan of the cam and knob for operating thesame. Fig. III is an elevation of window frame with sash therein thestops and fasteners being shown in dotted lines. Fig. IV is a crosssection of same Fig. V is a plan of an upper cross stop.

Let-ters of like name and kind refer to like parts in each of thefigures.

A Fig. I left hand side of window frame as constructed to receive thestop, fastener and cam.

B is a deep groove in which is placed the stop and springs (c). Thesprings c are fiat and bent like those connected to the stop No. 1 (Fig.II) and are made fast to the bottom of the groove at one end by a screw(o) leaving the free end thereof to lift the stop to its outermostposition.

E is a stationary stop which forms a division between the upper andlower sash.

g is a stationary outside stop which holds the upper sash. h, L, outsideand inside casing, i stop which works in the groove B.

.I is a flat bar which is fastened at each end to the stop by means ofthe screws (r) so as to leave a space between it and the stop for thecam.

K is a fastener pin which projects from the stop (i) for the purpose ofholding and fastening the upper sash in place. It works in the crossgroove K.

L is a cam formed on the cam shaft (m). The cam shaft is connected atone end to the knob N and the other end works in a socket or hole madein the side of the groove O is a brass plate connected with the knob andshaft Aand is fastened to the casingby means of screws p. When placed inposit-ion as represented in Figs. I, II, and III, the cam stands betweenthe bent bar J and stop (i) so that when the cam is turned by means ofthe knob (N) the cam will act against the bar J and draw the stopsinwardly compressing the springs c and thereby release the hold of thestops and fastener upon the sash. The knob and thereby the cam beingturned in the opposite direction the springs c will throw the stops andfastener outwardly to their original position. p

The right hand side of the window frame A diers from the other inrespect to its having two deep grooves B and B to receive two stops, z',Fig. I, and i2, Fig. II. The stop 2 has springs c and bent metal bar Jconnected therewith. The cam L has a broader face so as to operate bothstops. By turning the knob the cam will move both stops back compressingeach set of springs and withdraw the fastener from the not-ches in thesash and thereby liberate the lower sash.i The cam will hold the stopsback so that the operator can have the use of both hands for removingthe sash when required. The difiiculty with spring stops heretoforeconstructed is-there is no means of Inoving the stop and holding it backwhile the sash is removed except by hand and this operation is renderedinconvenient and difficult for the reason that both hands are requiredto remove the sash with ease and safety.

My improvement avoids this difficulty and gives the operator perfectcontrol by mechanical means over the movements of the stops and allowshim the use of both hands for removing the sash and returning it againto its place and also affords the means of lowering and holding theupper sash at any required height Whether the being arranged andoperated for the prloWer sash is or is not in place. W Fig. V pose andas herein set forth. is en upper cross stop which limits the out- Wardmovement of the stops (i) and i2. f CLARK SHAW' 5 I elaim- Witnesses:

Operating the spring stops z', 2 by means E. M. DAVIS,

' of the cams L, L', and knobs N the same W. H. FoRBUsH.

